Elastomeric back with rails for mobile device

ABSTRACT

A mobile device has a front face and a back face opposite the front face. The back face includes an elastomeric layer. A pair of longitudinal sides are coupled to the front face and back face, and a pair of latitudinal sides are also coupled to the front face and back face. The back face or the longitudinal sides define a recessed slot extending along a longitudinal length of the back face or longitudinal sides, respectively. The recessed slot defines an open end at at least one of the latitudinal sides. The recessed slot has a recessed slot surface that has a low-friction material. A holster includes a pocket defining an open top end configured to receive the mobile device. A rail extends longitudinally along an interior side of the pocket. The rail is configured to correspond with and slidably engage the slot on the mobile device.

CROSS-REFERENCE TO RELATED APPLICATION

This is a continuation of U.S. application Ser. No. 12/328946, filedDec. 5, 2008, hereby incorporated herein by reference.

FIELD

The technology described in this patent document relates generally tothe field of handheld mobile devices.

BACKGROUND

Handheld mobile devices, such as smart phones and cellular phones, aretypically enclosed in hard cases composed of hard materials that presenta low-friction surface. This type of enclosure provides impactresistance and durability; however, such smooth-surfaced, low-frictionmaterials have some drawbacks. For example, a mobile device with a hard,slippery, plastic case will readily slide across most surfaces, such asa car dashboard or seat. This can cause the mobile device to fall out ofreach, and it can be especially dangerous to retrieve while driving.Furthermore, a slippery surface can contribute to the mobile devicebeing dropped and broken.

Rubber surfaces have been used to partially cover mobile devices.However, the high-friction properties of rubber enclosures that providea superior gripping feature also greatly inhibit the ability of the userto put the device in a holster, since the high-friction rubber resistsbeing inserted and removed from the holster.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of an example mobile device;

FIG. 2 is a back view of the example mobile device;

FIG. 2A is a cross-sectional view of the example mobile device;

FIG. 2B is a cross-sectional view of the example mobile device withL-shaped recessed slots;

FIG. 3 is a side view of the example mobile device;

FIG. 4 is a back view of a second example mobile device;

FIG. 5 is a side cross-sectional view of an example mobile deviceholster;

FIG. 5A is a cross-sectional view of the example mobile device holster;

FIG. 5B is a cross-sectional view of the example mobile device holsterwith L-shaped recessed slots;

FIG. 6 is a side view of a third example mobile device;

FIG. 6A is a cross-sectional view of a third example mobile device;

FIG. 7 is a side cross-sectional view of a second example mobile deviceholster;

FIG. 7A is a cross-sectional view of the second example mobile deviceholster; and

FIG. 8 is a schematic diagram of an example mobile device.

DETAILED DESCRIPTION

Example mobile devices with a high-friction surface and a low-frictionrecessed slot are described herein. Example holsters are also describedherein that include a rail with a low-friction surface that isconfigured to slidably engage the recessed slot of an example mobiledevice. These example mobile devices provide the benefits of ahigh-friction covering while overcoming the challenge of using themobile device in conjunction with a holster.

FIG. 1 shows an example mobile device 10. The front face 11 includes adisplay 12 and keys 14. The keys 14 in this example are arranged as aQWERTY keyboard. The front face 11 is circumscribed by a pair oflongitudinal sides 16, 17, and a pair of latitudinal sides 18, 19.

FIG. 2 shows the back face 21 of the example mobile device 10. The pairof longitudinal sides 16, 17 and the pair of latitudinal sides arecoupled to the front face 11 and back face 21. The back face 21 in thisexample is covered with a high-friction elastomeric layer 29. Tworecessed slots 23 and 24 are defined in the back face and are notcovered with the high-friction elastomeric layer 29. The back face 21need not be completely covered with an elastomeric layer 29. Forexample, coverage of 30% or more, 50% or more, 75% or more, or 90% ormore may be acceptable to prevent sliding.

The elastomeric layer should have a high coefficient of friction toprovide a surface that will resist sliding on even a low-frictionsurface. The elastomeric layer should also have a softness sufficient toprovide some enhancement of impact resistance. Example elastomers thatmay satisfy these properties include elastomers generally classified asrubbers, specific elastomers include, but are not limited to,poly(styrene-butadiene), polyisoprene, polyisobutylene, natural rubber,polybutadiene, silicone rubber, nitrile rubber, polychloroprene, andethylene-propylene diene.

The recessed slots 23, 24 run parallel to each other along thelongitudinal length of the back face 21 of the mobile device 10. Eachrecessed slot 23, 24 defines a tapered opening 25, 26 at the bottomlatitudinal side 19 and a tapered opening 27, 28 at the top latitudinalside 18. The tapered openings 25, 26 have a width that tapers fromlarger to smaller as the recessed slots 23, 24 extend longitudinallyaway from an open end at the bottom latitudinal side 19. Similarly, thetapered openings 27, 29 have a width that tapers from larger to smalleras the recessed slots 23, 24 extend longitudinally away from an open endat the top latitudinal side 19. This configuration allows acorresponding rail (provided on a holster, which will be described infurther detail below) to be inserted into the recessed slots 23, 24 fromeither the top latitudinal side 18 or the bottom latitudinal side 19. Asingle slot or multiple slots, such as three or four may alternativelybe used in conjunction with a single rail or multiple rails, such asthree or four. By placing the slots 23, 24 on the back face 21, thelongitudinal sides 16, 17 are unobstructed and available for buttons,interfaces, and other components.

FIG. 2A shows a cut-away view of the example mobile device 10. Theelastomeric layer 29 overlays a rigid material 31, such as plastic,which forms the mobile device 10 case or housing. The recessed slots 23,24 are composed of the rigid material 31, which is a low-frictionmaterial that allows for a corresponding rail to readily slide withinthe slot. The rigid material 31 that composes the recessed slots 23, 24protrudes to the exterior surface of the back face 21. This feature mayprotect the elastomeric layer 29 from excessive wear against the rail.

FIG. 2B also shows a cut-away view of the example mobile device 10, butwith a variation on the shape of the recessed slots 23, 24. In thisexample, the recessed slots each define an undercut 34, 35 that forms anL-shaped cross-section in the rigid material 31 case. This undercut 34,35 provides a surface to retain a corresponding rail from being pulledaway from the back face 21 of the mobile device 10, as further describedbelow.

FIG. 3 shows a side view of the example mobile device 10. In thisembodiment, the elastomeric layer extends more than 50% onto thelongitudinal sides 16, 17. This embodiment provides an enhanced grip forthe user, because a user's hand will typically apply pressure to thelongitudinal sides 16, 17 to firmly hold the mobile device 10. Invariations, the elastomeric layer may extend 60% to 100%, 80% to 100%,or 90 to 100%, onto the longitudinal sides 16, 17.

FIG. 4 shows a back face 51 of a second example mobile device 40. Inthis second example mobile device 40, the front face and longitudinalsides are the same as in FIGS. 1 and 3. The back face 51 in this exampleis also covered with a high-friction elastomeric layer 59. Two recessedslots 53, 54 are defined in the back face 51 and are not covered withthe high-friction elastomeric layer. However, in the second examplemobile device 40, the recessed slots 53, 54 run parallel to each other,but only partially extend along the longitudinal length of the back face51 of the mobile device 40. The recessed slots 53, 54 may, for example,run between 50% to 99% of the longitudinal length of the back face 51,such as 60 to 95%, 70 to 95% or 80 to 95%. Each recessed slot 53, 54defines a tapered opening 55, 56 at a bottom latitudinal side 49. Inother examples, the slots 53, 54 could have tapered openings at a toplatitudinal side 48.

This one-sided opening configuration allows rails to be inserted intothe recessed slots 53, 54 from one of the top or bottom latitudinalsides 48, 49. This feature requires the second example mobile device 40to be oriented in a certain direction to be properly placed in acorresponding holster, as described in further detail below. Thisconfiguration also allows for some expanded volume in the internalcavity of the mobile device 40 in place of the recessed grooves.However, it is appreciated that a single slot or three or more slots mayalso be appropriate, depending on the application.

FIGS. 5 and 5A show an example holster 60. The holster 60 defines apocket for a mobile device, and has a back side 62 that includes tworaised rails 65, 66 that run longitudinally in parallel along theholster's back side 62. A front side 68 of the holster 60 is oppositethe back side 62, and first and second lateral sides 71, 72 are coupledto the back side 62 and front side 68. The front side 68, back side 62,and first and second lateral sides 71, 72 are collectively referred toas interior sides. A bottom side 74 is circumscribed by the back side62, the front side 68 and the first and second lateral sides 71, 72. Theholster 60 is open at the top and dimensionally configured to receive amobile device, such as the example mobile device 10. The holster may becomposed of a rigid material such as plastic, although other materialswith similar properties may be appropriate.

The rails 65, 66 on the example holster 60 are composed of alow-friction material such as metal or plastic. A low-friction fabriccoating such as felt may also be used to cover the rigid rails 65, 66,although it is appreciated that other low friction materials may besuitable. The rails 65, 66 are configured to slidably engage therecessed slots 23, 24 of the example mobile device 10 and have a heightgreater than the depth of the slots 23, 24. This configuration enablesthe rails 65, 66 to push against the bottom of the slots 23, 24 andprovide separation between the back face 21 of the example mobile device10 and the back side 62 of the example holster 60. The rails 65, 66 runthe entire length or nearly the entire length of the holster 60.

In other embodiments, the rails 65, 66 need not run the entire length ofthe back side 62 (not shown). For example, a holster configured toreceive the second example mobile device 40 would have rails 65, 66 thatbegin at or near the bottom side 74 of the holster 60 but only continuepartially along the longitudinal length of the back side 62 so as tomatch the length of the shorter recessed slots 53, 54 of the secondexample mobile device 40. For example, the rails 65, 66 may extend 50%to 99% of the longitudinal length of the back side 62, such as 60 to95%, 70 to 95%, or 80 to 95%.

A magnet 75 is disposed in the front side 68 of the example holster 60,and functions to interact with the mobile device when it is insertedinto the holster 60. For example, to conserve battery power, the magnet75 may signal the mobile device to shut down or sleep when in theholster 60.

The magnet 75 could be placed in an off-center location of the holster60 (not shown). The off-center location could be offset from the centerof the holster 60 in one dimension or two. In either case, theoff-center magnet 75 would interact with the example mobile device 10differently depending on which direction the example mobile device 10 isinserted. For example, inserting the example mobile device 10 with thebottom latitudinal side 19 facing the bottom side of the holster 60could be configured to cause the example mobile device 10 to go into asleep mode, (e.g. locking the keys 14 of the mobile device 10 andshutting off the display screen 12). Alternatively, inserting theexample mobile device 10 with the top latitudinal side 18 facing thebottom side of the holster 60 (i.e. upside-down), could be configured toshut off the mobile device 10. In the case of the second example mobiledevice 40, which can only be inserted into the holster 60 in onedirection, the magnet would only have one function, e.g. to cause thesecond mobile device 40 to sleep or shut-off.

The magnet 75 could also be placed in a central location that wouldcause the example mobile device 10 to sleep or shut-off, regardless ofits orientation in the holster 60. For example, the central location asshown in FIG. 5-5B and 7-7A.

FIG. 5B shows a cut-away view of the example holster 60, but with avariation on the shape of the rails 65, 66. In this example, the rails65, 66 each have a lip 76, 77, forming an L-shaped cross-section. Thelips 76, 77 are configured to fit within the undercuts 34, 35 on thevariation of the example mobile device 10 discussed above (shown in FIG.2B). Once the rails 65, 66 are inserted into the L-shaped slots 23, 24,the undercuts 34, 35 on the slots 23, 24 will provide a surface toretain the lips 76, 77 of the rails 65, 66 and provide a more secure fitin the holster 60.

A T-shaped cross-section for both rails 65, 66 and recessed slots 23, 24is another option, although it is appreciated that additionalconfigurations for the rails and corresponding slots may also beappropriate.

FIGS. 6 and 6A show a third example mobile device 110 that is the sameas the first example mobile device 10, except it has recessed slots 123,124 with tapered openings 125, 127 disposed on the longitudinal sides116, 117, instead of the back face 121. In addition, the elastomericlayer 129 of the device 110 is configured differently. Specifically, theelastomeric layer 129 covers the back face 121 and the longitudinalsides 116, 117, up to the recessed slots 123, 124, and continues ontothe other side of the recessed slots 123, 124. This embodiment may allowthe mobile device 110 to be thinner than the examples where the recessedrails are disposed in the back face 121. It also allows the back face tobe free of the obstruction of the slots, so that components such asbattery doors, keys, secondary displays, electronic interfaces,speakers, or microphones may be disposed on the back face 121.

In an alternative example, the third example mobile device 110 can haverecessed slots 123, 124 that partially extend along the longitudinallength of the longitudinal sides 116, 117 of the mobile device 110 andare open at one latitudinal side 118 or 119. The recessed slots 123, 124may run between 50% to 99% of the longitudinal length of thelongitudinal sides 116, 117, such as 60 to 95%, 70 to 95% or 80 to 95%.It may be preferable to limit the length of the recessed slots 123, 124to allow room for buttons or other components on the longitudinal sides116, 117 of the example mobile device 110. This configuration alsoallows for some expanded volume in the internal cavity of the thirdexample mobile device 110 in place of the recessed slots 123, 124. Whenthe recessed slots 123, 124 are used in conjunction with othercomponents on the longitudinal sides 116, 117, it may be preferable tolimit the length of the recessed slots to 50 to 75% of the length of thelongitudinal sides 116, 117, such as 51% to 70%, or 55% to 65%.

As discussed above, the partially extending, one-sided openingconfiguration allows a rail to be inserted into the recessed slots 123,124 from only one latitudinal side 118 or 119. This feature requires thethird example mobile device 110 to be oriented in a certain directionwhen placed in a holster.

FIGS. 7 and 7A depict a second example holster 160 that is the same asthe example holster 60 discussed above, except the rails 165, 166 aredisposed on the first and second lateral sides 171, 172 instead of theback side 162. The front side 168, back side 162, and first and secondlateral sides 171, 172 are collectively referred to as interior sides.The rails 165, 166 should be of sufficient height so that they aretaller than the depth of the recessed slots 123, 124 of the thirdexample mobile device 110. Such a configuration enables the rails 165,166 to provide separation between the longitudinal sides 116, 117 of thethird example mobile device 110 and the first and second lateral sides171, 172 of the second example holster 160. In the depicted example, therails 165, 166 run the entire length or nearly the entire length of thesecond example holster 160. However, alternatively, the rails 165, 166may run only partially along the longitudinal length of the first andsecond lateral sides 171, 172 (not shown). The rails 165, 166 shouldcorrespond to the length of the recessed slots 123, 124 of the mobiledevice with which the holster 160 is configured to be paired.

Optionally, the rails 165, 166 of the second example holster 160 mayhave an L-shaped cross-section as described above with regard to theexample holster 60. In conjunction, the third example mobile device 110may have recessed slots with L-shaped cross-sections. A T-shapedcross-section for both rails 165, 166 and recessed slots 123, 124 isanother option. However, it is to be understood that additional slot andrail configurations may be suitable.

The example mobile devices (generally referred to herein as 510)disclosed herein include common features that are shown schematically inFIG. 8. A display 516 is preferably a full graphic LCD, although othertypes of output devices may alternatively be utilized. A processingdevice 518, which is shown schematically in FIG. 8, is contained withina housing 512 and is coupled between a keyboard 514 and the display 516.The processing device 518 controls the operation of the display 516, aswell as the overall operation of the mobile communication device 510, inresponse to actuation of keys on the keyboard 514 by the user.

The housing 512 may be elongated vertically, or may take on other sizesand shapes, including a clamshell housing structure, among otherstructures. The keyboard may include a mode selection key, or otherhardware or software for switching between text entry and telephonyentry.

In addition to the processing device 518, other parts of the mobilecommunication device 510 are shown schematically in FIG. 8. Theseinclude a communications subsystem 600; a short-range communicationssubsystem 602; the keyboard 514 and the display 516, along with otherinput/output devices 606, 608, 610, and 612; memory devices 616, 618;and various other device subsystems 620. The mobile communication device510 is preferably a two-way RF communication device having voice anddata communication capabilities. In addition, the mobile communicationdevice 510 preferably has the capability to communicate with othercomputer systems via the Internet.

Operating system software executed by the processing device 518 ispreferably stored in a persistent store, such as a flash memory 616, butmay be stored in other types of memory devices, such as a read onlymemory (ROM) or similar storage element. In addition, system software,specific device applications, or parts thereof, may be temporarilyloaded into a volatile store, such as a random access memory (RAM) 618.Communication signals received by the mobile communication device mayalso be stored to the RAM 618.

The processing device 518, in addition to its operating systemfunctions, enables execution of software applications 630A-630N on thedevice 510. A predetermined set of applications that control basicdevice operations, such as data and voice communications 630A and 630B,may be installed on the device 510 during manufacture. In addition, apersonal information manager (PIM) application may be installed duringmanufacture. The PIM is preferably capable of organizing and managingdata items, such as e-mail, calendar events, voice mails, appointments,and task items. The PIM application is also preferably capable ofsending and receiving data items via a wireless network 640. Preferably,the PIM data items are seamlessly integrated, synchronized and updatedvia the wireless network 640 with the device user's corresponding dataitems stored or associated with a host computer system. An examplesystem and method for accomplishing these steps is disclosed in “SystemAnd Method For Pushing Information From A Host System To A Mobile DeviceHaving A Shared Electronic Address,” U.S. Pat. No. 6,219,694, which isowned by the assignee of the present application and incorporated hereinby reference.

Communication functions, including data and voice communications, areperformed through the communication subsystem 600, and possibly throughthe short-range communications subsystem 602. The communicationsubsystem 600 includes a receiver 650, a transmitter 652, and one ormore antennas 654, 656. In addition, the communication subsystem 600also includes a processing module, such as a digital signal processor(DSP) 658, and local oscillators (LOs) 660. The specific design andimplementation of the communication subsystem 600 is dependent upon thecommunication network in which the mobile communication device 510 isintended to operate. For example, a mobile communication device 510 mayinclude a communication subsystem 600 designed to operate with theMobitex™, Data TAC™ or General Packet Radio Service (GPRS) mobile datacommunication networks and also designed to operate with any of avariety of voice communication networks, such as AMPS, TDMA, CDMA, PCS,GSM, etc. Other types of data and voice networks, both separate andintegrated, may also be utilized with the mobile communication device510.

Network access requirements vary depending upon the type ofcommunication system. For example, in the Mobitex and DataTAC networks,mobile devices are registered on the network using a unique personalidentification number or PIN associated with each device. In GPRSnetworks, however, network access is associated with a subscriber oruser of a device. A GPRS device therefore requires a subscriber identitymodule, commonly referred to as a SIM card (not shown), in order tooperate on a GPRS network.

When required network registration or activation procedures have beencompleted, the mobile communication device 510 may send and receivecommunication signals over the wireless network 640. Signals receivedfrom the network 640 by the antenna 654 are routed to the receiver 650,which provides for signal amplification, frequency down conversion,filtering, channel selection, etc., and may also provide analog todigital conversion. Analog-to-digital conversion of the received signalallows the DSP 658 to perform more complex communication functions, suchas demodulation and decoding. In a similar manner, signals to betransmitted to the network 640 are processed (e.g. modulated andencoded) by the DSP 658 and are then provided to the transmitter 652 fordigital to analog conversion, frequency up conversion, filtering,amplification and transmission to the network 640 (or networks) via theantenna 656.

In addition to processing communication signals, the DSP 658 providesfor control of the receiver 650 and the transmitter 652. For example,gains applied to communication signals in the receiver 650 andtransmitter 652 may be adaptively controlled through automatic gaincontrol algorithms implemented in the DSP 658.

In a data communication mode, a received signal, such as a text messageor web page download, is processed by the communication subsystem 600and is input to the processing device 518. The received signal is thenfurther processed by the processing device 518 for an output to thedisplay 516, or alternatively to some other auxiliary I/O device 606. Adevice user may also compose data items, such as e-mail messages, usingthe keyboard 514 and/or some other auxiliary I/O device 606, such as atrackball, a touchpad, a rocker switch, a thumb-wheel, or some othertype of input device. The composed data items may then be transmittedover the network 640 via the communication subsystem 600.

In a voice communication mode, overall operation of the device issubstantially similar to the data communication mode, except thatreceived signals are output to a speaker 610, and signals fortransmission are generated by a microphone 612. Alternative voice oraudio I/O subsystems, such as a voice message recording subsystem, mayalso be implemented on the device 510. In addition, the display 516 mayalso be utilized in voice communication mode, for example to display theidentity of a calling party, the duration of a voice call, or othervoice call related information.

The short-range communications subsystem 602 enables communicationbetween the mobile communication device 510 and other proximate systemsor devices, which need not necessarily be similar devices. For example,the short-range communications subsystem 602 may include an infrareddevice and associated circuits and components, or a Bluetooth™communication module to provide for communication with similarly-enabledsystems and devices.

While various features of the claimed elastomeric back with rails for amobile device are presented above, it should be understood that thefeatures may be used singly or in any combination thereof. Therefore,the claims are not to be limited to only the specific examples depictedherein. The scope of the disclosure is accordingly defined as set forthin the appended claims.

For example, a variation on the examples described herein may include alocking mechanism on the rails that interacts with the groove to holdthe mobile device in place.

It should be understood that the terms longitude and latitude as usedherein are to be interpreted as mutually comparative terms, not asdesignating an absolute direction. For example, a longitudinal sidecould also be called a latitudinal side if the latitudinal side of thesame device is correspondingly considered a longitudinal side. It shouldalso be understood that the term “a” or “an” is used to mean “one ormore” unless otherwise indicated.

1. A system comprising: a handheld device comprising a first sidedefining a first longitudinal slot having an open end and a second sideopposite the first side and defining a second longitudinal slot havingan open end; said first and second sides comprising surfaces formed of aslide resistant material having a high coefficient of friction disposedabout the slots; each of said slots having a depth and being formed of amaterial having a low coefficient of friction, and a receiving structuredefining a pocket for receiving the handheld device and having anopening, said receiving structure comprising opposite rails extendingfrom the opening, each rail being disposed to slidingly engage one ofsaid slots through the open end thereof, each rail being formed of amaterial having a low coefficient of friction to facilitate slidingwithin said slot and having a height greater than the depth of the slotby a distance sufficient to space the side apart from the receivingstructure.
 2. The system of claim 1 wherein the receiving structurecomprises side walls disposed to be adjacent the first and second sidesof the handheld device, and wherein the rails are affixed to the wallsand project into the pocket.
 3. The system of claim 1 wherein each slothas a bottom surface that is adapted to contact the respective rail tospace the respective side of the device away from an adjacent side wallof the pocket.
 4. The system of claim 1 wherein the handheld deviceincludes a back face having a slide resistant material having a highcoefficient of friction, and wherein the pocket includes a back wallconfigured to face the device's back face when the device is received bythe receiving structure and to be spaced apart therefrom when the railsare received in the slots.
 5. The system of claim 1 wherein the handhelddevice has front and rear surfaces and top and bottom surfaces, andfurther has two opposite side surfaces that are at the first and secondsides and that extend in a longitudinal direction from the top surfaceto the bottom surface and in a lateral direction from the front surfaceto the rear surface.
 6. The system of claim 5 wherein the slots extendin the longitudinal direction and are recessed laterally inwardrespectively from the two side surfaces.
 7. The system of claim 6wherein each open end is at the bottom surface of the device for therespective rail to enter the slot through the open end.
 8. The system ofclaim 6 wherein each open end is a bottom open end, and the devicefurther includes, for each slot, a top open end at the top surface ofthe device for the respective rail to enter the slot through the topopen end, thereby enabling the device to be inserted into the pocket ineither of two opposite orientations.
 9. The system of claim 1 whereinthe device is configured to automatically perform a function whenreceived in the pocket.
 10. The system of claim 9 wherein the functionis to go into sleep mode.
 11. The system of claim 9 wherein the functionis to shut down.
 12. The system of claim 1 wherein the device isconfigured to automatically perform a first function when received inthe pocket in a first orientation and to automatically perform adifferent second function when received in the pocket in an oppositesecond orientation.
 13. The system of claim 12 wherein the firstfunction is to go into a sleep mode, and the second function is to shutdown.
 14. The system of claim 12 wherein the receiving structureincludes a magnet configured to interact with the device differentlydepending on the orientation of the device to selectively trigger thefirst function or the second function.
 15. A system comprising: ahandheld device that includes: opposite side surfaces spaced apart in alateral direction and formed of a high-friction slide resistant materialfor resisting sliding when grasped, each said side surface defining aslot formed of a material having lower friction than the slide resistantsurface section; a receptacle that includes: a pocket having an openingand opposite pocket sides extending from the opening, each said sidecomprising a rail projecting into the pocket and configured to beslidingly received by one of said slots to guide the device as thedevice is moved through the top opening into a received position in thepocket and having a height sufficient to keep the slide resistantmaterial spaced away from the adjacent pocket side as the device ismoved into the received position.
 16. The system of claim 15 wherein thedevice is configured to be inserted into the structure in either of twoopposite orientations with the rails slidingly received by the slots ineither orientation, and wherein the device is further configured toautomatically perform a first function when received in the pocket inone of the orientations and to automatically perform a different secondfunction when received in the pocket in the other orientation.
 17. Thesystem of claim 16 wherein the first function is to go into a sleepmode, and the second function is to shut down.
 18. The system of claim15 wherein the handheld device includes a back between the side surfacesand wherein the back includes the high-friction slide resistantmaterial.
 19. The system of claim 15 wherein the receptacle includes amagnet configured to interact with the device differently depending onthe orientation of the device to selectively trigger the first functionor the second function.